editing a pdf on windows without paying for acrobat

LibreOffice Draw. Free, and when you open a PDF in it every line of text becomes an editable text box, and images are objects you can delete and replace. Export back to PDF when you're done. Fonts can shift slightly if the original used one you don't have installed, so compare your edited page against the original. Word also opens PDFs and converts them, fine on a simple layout but it mangles columns and forms. The online free editors mostly watermark or cap you at a page, so I'd skip those for a logo swap.